@Zhao Yi 写道 不可编辑的背景没有键
的代码Java6
,必须更改imports for Java7
import com.sun.java.swing.Painter;
import java.awt.Color;
import java.awt.Graphics2D;
import java.awt.GridLayout;
import javax.swing.JComponent;
import javax.swing.JFrame;
import javax.swing.JTextArea;
import javax.swing.SwingUtilities;
import javax.swing.UIManager;
import javax.swing.UIManager.LookAndFeelInfo;
public class TestNimbusUIManagerTextArea {
private static JFrame frame = new JFrame("Nimbus UIDeafaults");
private JTextArea testEnableTextArea = new JTextArea("enabled JTextArea");
private JTextArea testDisableTextArea = new JTextArea("disabled JTextArea");
public TestNimbusUIManagerTextArea() {
testDisableTextArea.setEnabled(false);
frame.setLayout(new GridLayout(2, 0, 20, 20));
frame.add(testEnableTextArea);
frame.add(testDisableTextArea);
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.setLocation(200, 105);
frame.pack();
frame.setVisible(true);
}
private static void customizeNimbusLaF() {
UIManager.getLookAndFeelDefaults().put(
"TextArea[Enabled+NotInScrollPane].backgroundPainter",
new FillPainter(new Color(127, 255, 191)));
UIManager.getLookAndFeelDefaults().put(
"TextArea[Disabled+NotInScrollPane].backgroundPainter",
new FillPainter(new Color(127, 255, 191)));
SwingUtilities.updateComponentTreeUI(frame);
}
public static void main(String arg[]) {
try {
for (LookAndFeelInfo info : UIManager.getInstalledLookAndFeels()) {
if ("Nimbus".equals(info.getName())) {
UIManager.setLookAndFeel(info.getClassName());
customizeNimbusLaF();
break;
}
}
} catch (Exception e) {
}
java.awt.EventQueue.invokeLater(new Runnable() {
@Override
public void run() {
TestNimbusUIManagerTextArea tNUIM = new TestNimbusUIManagerTextArea();
}
});
}
}
class FillPainter implements Painter<JComponent> {
private final Color color;
FillPainter(Color c) {
color = c;
}
@Override
public void paint(Graphics2D g, JComponent object, int width, int height) {
g.setColor(color);
g.fillRect(0, 0, width - 1, height - 1);
}
}